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北京市海淀區(qū)2008年高三第二學(xué)期期末練習(xí)

英 語 試 題

本試卷分第I卷(選擇題)和第二卷(非選擇題)兩部分,共150分?荚嚂r(shí)間120分鐘。

注意事項(xiàng):

    1.答試卷第I卷時(shí),每小題選出答案后,用2B鉛筆把答題卡上對(duì)應(yīng)題目的答案選中涂滿涂黑,黑度以蓋住框內(nèi)字母為準(zhǔn)。如需改動(dòng),用橡皮擦除干凈后再選涂其他答案項(xiàng)。在試卷上答題無效。

    2.答試卷第II卷時(shí),必須用黑色字跡的簽字筆按題號(hào)順序答在答題卡上II的答題區(qū)域相應(yīng)位置內(nèi),未在對(duì)應(yīng)的答題區(qū)域作答或超出答題區(qū)域作答均不得分。在試卷上答題無效。

第I卷(選擇題,共115分)

第一部分:聽力理解(共兩節(jié),30分)

第一節(jié)(共5小題;每小題1.5分,共7.5分)

    聽下面5段對(duì)話。每段對(duì)話后有一道小題,從每題所給的A、B、C三個(gè)選項(xiàng)中選出最佳選項(xiàng)。聽完每段對(duì)話后,你將有10秒鐘的時(shí)間來回答有關(guān)小題和閱讀下一小題。每段對(duì)話你將聽一遍。

1.Where is Mr. Baker now?

       A.In his office.                B.In a hospital.               C.In a restaurant.

2.When will they probably discuss the plan?

       A.Before dinner.            B.After dinner.               C.Over dinner.

3.Why does the man refuse to look at the woman’s dress?

       A.He’s sleepy.                B.He’s busy.                   C.He’s lazy.

4.What do we know about the train?

       A.It’s broken.                 B.It’s empty.                   C.It’s late.

5.How much is the yellow coat?

       A.$ 45.                            B.$ 70.                             C.$ 90.

第二節(jié) (共15小題;每題1.5分,滿分22.5分)

聽下面6段對(duì)話或獨(dú)白。每段對(duì)話或獨(dú)白后有幾個(gè)小題,從題中所給的A,B,C三個(gè)選項(xiàng)中選出最佳選項(xiàng),并標(biāo)在試卷的相應(yīng)位置。聽每段對(duì)話或獨(dú)白前,你將有時(shí)間閱讀各個(gè)小題,每小題5秒鐘;聽完后,每小題將給出5秒鐘的作答時(shí)間。每段對(duì)話或獨(dú)白讀兩遍。

聽第6段材料,回答第6至7題。

6.Which bus will the woman take?

       A.T ? 3.                            B.Z ? 4.                            C.T ? 6.

7.What is the man doing?

       A.Giving directions.      B.Making an appointment.                       C.Asking for permission.

聽第7段材料,回答第8至9題。

8.What is the relationship between the two speakers?

       A.Husband and wife.   B.Doctor and patient.  C.Coach and player.

9.What do we know about the man?

       A.He had a heart attack.

       B.He’s on the basketball team.

       C.He used to play basketball very well.

聽第8段材料,回答第10至11題。

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       A.She’ll take a train.    

       B.She’ll drive her own car.

       C.She’ll ride with her friend.

11.What will the woman do in New York?

       A.See her friend.           B.Perform in an opera.  C.Attend a music camp.

聽第9段材料,回答第12至14題。

12.What is the man planning to do this afternoon?

       A.Go swimming.            B.Go to a class.             C.Go to the library.

13.What does Professor Smith probably teach?

       A.Literature.                   B.Science.                      C.Math.

14.What does the woman offer to do for the man?

       A.To write a poem for him.

       B.To help him with his history.

       C.To teach him how to study math.

聽第10段材料,回答第15至17題。

15.When will the man give his presentation?

       A.On Friday.                  B.On Saturday.              C.On Sunday.

16.What are they mainly talking about?

       A.Job worries.                B.Health problems.       C.Chinese medicine.

17.What is the man likely to do?

       A.Talk to another friend.                                       

       B.See the same doctor again.                              

       C.Follow the woman’s advice.

聽第11段材料,回答第18至20題。

 

18.How many copies of her first album were sold?

       A.1 million.                     B.13 million.                    C.18 million.

19.Which album holds a selling record?

       A.Come Away with Me.                                        B.Feels like Home.   C.Not Too Late.

20.What can we learn about Norah Jones?

       A.She won five Grammy Awards for her first three albums in 2003.

       B.She was considered one of the most influential people in 2006.

       C.She made a most popular album for Amazon.com in 2007.

第二部分:英語知識(shí)運(yùn)用(共兩節(jié), 滿分45分)

第一節(jié):單項(xiàng)填空(共15小題,每小題1分,滿分15分)

從A、B、C、D四個(gè)選項(xiàng)中,選出可以填入空白處的最佳選項(xiàng)。

例:It’s so nice to hear from her again.        , we last met more than thirty years ago.

       A.What’s more    B.That’s to say     C.In other words D.Believe it or not

       答案是D。

21.She devoted herself        science, and made great contribution        the development of technology.

       A.in; to                 B.to; of                 C.in; in                 D.to; to

22.--- Daniel! The alarm clock has been ringing for almost a minute.

    --- Oh, Mum! Can I sleep         minutes?

       A.a(chǎn)nother five                                    B.more five         

       C.five another                                    D.five other

23.The cooking chicken        very good. So from whom did you learn to cook it?

       A.smelt                 B.smells                 C.is smelt              D.is smelling

24.--- I can never afford a flat like that!

    ---         . The price is too high!

       A.So I can                                           B.So can I           

       C.Neither I can                                   D.Neither can I

25.--- Jack, join us in the game!

    --- OK. Could you tell me        it is about?

       A.which               B.what                 C.how                  D.why

26.Time is life; therefore, waste your time and waste your life,       master your time and master your life.

       A.a(chǎn)nd                  B.for                      C.so                      D.or

27.--- You shouldn’t have played such a joke on him.

    --- Sorry. I         that he would get so angry.

       A.didn’t expect                                 B.don’t expect  

       C.hadn’t expected                                                           D.hasn’t expected

28.Why not get some work experience first        go straight on to university?

       A.or rather           B.other than        C.more than       D.rather than

29.TV ? Turnoff Week,         millions of people around the world participate every year, tries to encourage people to turn on life.

       A.in which                                          B.on which         

       C.which                                              D.when

30.The book        the test of time. Over 200 years after it was written, it’s been very popular.

       A.will stand                                         B.has stood         

       C.had stood                                       D.is standing

31.--- Lisa is going traveling at the cost of losing her job.

    --- Really? She         a lot of money.

       A.must save                                        B.might save      

       C.must have saved                                                           D.might have saved

32.With more and more new drugs         , doctors don’t find it that difficult to treat patients.

       A.develop                                          B.developed      

       C.to develop                                      D.being developed

33.Shops across China       from handing out free plastic bags from June 1st this year and shoppers will have to pay if they want a bag.

       A.will ban                                           B.have banned 

       C.will be banned                                                              D.have been banned

34.Losing weight is no easy task. A lot of people who lost weight gain it back over time and end up back      they started.

       A.where                                              B.though             

       C.since                                                D.a(chǎn)fter

35.--- Hey, dear! Guess what? I’ve got a pay rise!

    --- This         a celebration! Let’s go to sing Karaoke tonight.

       A.brings out                                        B.works out         

       C.calls for                                            D.pays for

第二節(jié) 完型填空(共20小題;每小題1.5分,滿分30分)

閱讀下面短文,掌握其大意,然后從36―55各題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出最佳選項(xiàng)。

A Good Friend, A Second Self

I couldn’t believe my ears when I heard my name called for the leading role in our high school play. Mrs. Dermitt, my drama teacher, had been looking for someone to play an energetic boy in a comedy. Luckily for me, she thought that I could handle the   36  .

That afternoon my friend Kevin and I talked   37   about the play. Although Kevin hadn’t been   38   for a part onstage, his job with the set crew was important to the success of the play. I told him I was a little   39   because I had a lot of lines to memorize.

“You can do it.” He said. I knew I could   40   him: we had been friends since the third grade, and we   41   a good team.

Preparations for the play moved at a rapid pace. While working hard with the set crew, Kevin   42   spent hours helping me learn my lines. He often said my lines with me by silently moving his lips. We   43   that he could probably play my part as well as I could.

Three days before the   44   night, everything was ready for the performance. But when I woke up   45   a fever and sore throat on the day of the play, the entire production came to a sudden   46  . Everyone in the drama department was worried,   47   there was no way I could perform. The play was   48   to open in fewer than six hours, and we had no time to cancel. I tried to think of a way to   49  . Then it hit me ? Kevin knew the   50   as well as I did. I called Mrs. Dermitt to give her my   51  . Within a few short hours, Kevin stood onstage in costume and makeup. The amusing lines he had   52   with me so many times made the crowd laugh and cheer. In a strange turn of events, Kevin and I had   53   the day for everyone by working as a team.

Of course, I was terribly disappointed to have   54   my chance in the spotlight, but I was extremely   55   to have such a good friend.

36.A.part                  B.play                  C.band                D.crew

37.A.calmly             B.seriously            C.excitedly          D.a(chǎn)nxiously

38.A.elected           B.chosen              C.invited              D.trained

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40.A.count on         B.tend to             C.talk with           D.a(chǎn)gree with

41.A.joined              B.found                C.took                  D.made

42.A.a(chǎn)lso                  B.only                   C.still                     D.simply

43.A.expected        B.debated          C.a(chǎn)greed             D.joked

44.A.final                  B.special              C.opening           D.greeting

45.A.with                  B.from                   C.in                      D.by

46.A.change           B.turn                   C.stop                  D.end

47.A.for                     B.but                    C.a(chǎn)nd                  D.so

48.A.likely                 B.ready                C.sure                   D.due

49.A.pass                 B.help                  C.care                 D.face

50.A.steps                B.lines                   C.point                D.case

51.A.introduction    B.instruction         C.explanation    D.suggestion

52.A.scanned          B.grasped            C.practiced        D.presented

53.A.valued             B.saved                C.left                    D.kept

54.A.offered             B.a(chǎn)voided           C.risked                D.missed

55.A.successful        B.thankful            C.trustful              D.hopeful

第三部分:閱讀理解(共20小題,每題2分,滿分40分)

閱讀下列短文,從每題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出最佳選項(xiàng)。

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

56.Tommy Molina’s letter is used in the ad to          .

      A.prove the camp is wonderful

       B.tell the way to meet cool people

       C.introduce the great camping place

       D.show everybody is eager to come back

57.The information in ACTIVITIES OFFERED shows us that         .

       A.owning a camera is a must to learn how to take pictures

       B.weekly competitions will be held by Chippenstock Times.

       C.classes are available for campers of different swimming levels

       D.campers can get close to nature by joining in Craft and Hiking

58.From the advertisement we learn that         .

       A.Camp Chippenstock is intended for all teenagers

       B.a(chǎn)ll the instructors used to be Chippenstock campers

       C.we can take part in the camp throughout the summer

       D.Camp Chippenstock costs less than many other camps

B

While watching the Olympics the other night, I came across an unbelievable sight. It was not a gold medal, or a world record broken, but a show of courage.

The event was swimming and started with only three men on the blocks. For one reason or another, two of them false started, so they were disqualified. That left only one to compete. It would have been difficult enough, not having anyone to race against, even though the time on the clock is important.

I watched the man dive off the block and knew right away that something was wrong. I’m not an expert swimmer, but I can tell a good dive from a poor one, and this was not exactly medal quality. When he resurfaced, it was evident that the man was not out for gold ? his arms were waving in an attempt at freestyle. The crowd started to laugh. Clearly this man was not a medal competitor.

I listened to the crowd begin to laugh at this poor man who was clearly having a hard time. Finally he made his turn to start back. It was pitiful. He made a few desperate strokes and you could tell he was worn out.

But in those few awful strokes, the crowd had changed.

No longer were they laughing, but beginning to cheer. Some even began to stand and shout “Come on, you can do it!” and he did.

A clear minute past the average swimmer, this young man finally finished his race. The crowd went wild. You would have thought that he had won the gold, and he should have. Even though he recorded one of the slowest times in Olympic history, this man gave more heart than any of the other competitors.

Just a short year ago, he had never even swum, let alone race. His country had been invited to Sydney.

In a competition where athletes remove their silver medals feeling they have somehow been cheated out of gold, or when they act so proudly in front of their competitors, it is nice to watch an underdog.

59.From the passage we can learn that the young man         .

      A.made his turn to start back pitifully

       B.was skillful in freestyle in the game

       C.swam faster than the average swimmer

       D.was not capable enough to win the medal

60.The crowd changed their attitudes because          .

       A.they felt sorry for the young man

       B.they were moved by the young man

       C.they wanted to show their sympathy

       D.they meant to please the young man

61.According to the passage, “it is nice to watch an underdog” probably means         .

       A.it’s amusing to watch a man with awful swimming skills

       B.it’s amazing to watch an ordinary man challenging himself

       C.it’s cheerful for athletes to act proudly before their competitors

       D.it’s brave enough for some athletes to remove the silver medals

62.What’s the best title for the passage?

       A.Compete for Gold!                         B.Try again!

       C.Break a Record!                                                             D.Go for it!

C

In Alexandria, Virginia, the two thousand students at T. C. Williams High School started classes last month in a new building. It was built as a “green” school based on requirements from the United States Green Building Council.

The council is a nonprofit organization made up of building industry leaders. It has a rating system for buildings called Leadership in Energy and Environmental Design, or LEED.

In 2001, there were four schools asking for LEED certification. Now there are four hundred, including T.C. Williams. So far, fifty-eight schools have been recognized for meeting the requirements. These include protecting natural areas and limiting the amount of chemicals in building materials. They also include better lighting and improved indoor air quality. Buildings are also rated on how well they use energy and water, and on things like the use of recycling programs. At T.C. Williams, one example of green design can be seen in the many windows that let in natural light. Students say the sunny rooms help them stay awake during class.

A rooftop garden is designed to provide storm water control and help keep the building cool in the sun. And an underground tank can store 1,700,000 liters of rainwater for air conditioning and other systems.

The new building cost about 90,000,000 dollars to build. It stands next to the old T.C. Williams building, which officials say will slowly be taken apart and recycled. T.C. Williams High School is still waiting for the final part of the LEED certification process. Schools receive points for the number of requirements they meet. Buildings are rated silver, gold or platinum.

Around the country, concerns about limited budgets for public schools sometimes lead to objections to investing in “green” schools. But the Green Building Council points to a report by Capital E, a Washington, D.C., company that serves the clean energy industry. Capital E examined the cost of thirty “green” schools in the United States. It says the average cost was only two percent higher compared to a traditional school. And it says this extra cost is small compared to the savings over time from lower energy and water costs and healthier students.

63.The United States Green Building Council aims to         .

      A.collect money for “green” schools

       B.construct “green” buildings on its own

       C.promote the construction of “green” schools

       D.evaluate the “greenness” of any school building

64.We know from the passage that         .

       A.LEED evaluates the buildings at four different levels

       B.Capital E designed many requirements for “green” schools

       C.T.C. Williams High School has received LEED certification

       D.LEED is provided by the United States Green Building Council 

65.The underlined word they in Paragraph 3 refers to          .

       A.the requirements                                                           B.the natural areas

       C.the building materials                    D.the amount of chemicals

66.What can be inferred from the last paragraph?

       A.Green schools cost more than traditional ones.

       B.Capital E is devoted to the clean green industry.

       C.Green schools will have more benefits in the long term.

       D.Limited budgets cause a disagreement on “green” schools.

D

jobs, Jonathan Grubin, a 16 ? year ? old boy, has logged on to an

online success which turned over £75,000 last year.

Now his success is already beginning to show with the launch

of ForFrea4U.co.uk, which offers visitors free iPods and digital

cameras for signing up their friends to its advertisers. Jonathan has

got more than 55,000 members to the site in less than two years,

sending off £25,000 worth of products.

His success is down to a business move known as affiliate marketing, a web ? based marketing practice in which a business rewards one or more affiliates for each visitor or customer brought about by the affiliate’s marketing efforts.

The Royal Grammar School student said: “I have always been interested in websites and the ideas behind them. I though, ‘if only there was another way I could get my hands on these goods’, so I made a website for a bit of fun.” Jonathan added: “I partner with some advertisers, and they send me commission (傭金) each time I get them a new customer. I offer visitors to my website a reward when they sign up.”

“Advertisers were very quick to realize the potential of the network. Affiliale marketing is highly successful for advertisers because they only pay when they see results.”

“When you run an expensive television advertising campaign, nothing is guaranteed. But with my business model, advertises only pay their commission when they see results.”

Jonathan, who works from his computer at home, launched his first website when he was 12 offering mobile phone wallpapers and screensavers after rival sites were charging youngsters for downloads.

He also runs livenewcastle. co. uk, a resource website for Newcastle with listings, reviews and directories. He added: “I remember receiving my first cheque, it was £10.44, and I was amazed that I had received it. The only thing I really want to do is to be able to work for myself.”

“There are a lot of downsides, but there are advantages too. The fact is that I am so young, and when I’m 20, I’m going to have a lot of knowledge and experience that most people won’t have until they are 30 or 40.”

67.Which of the following helps lead to the success of For Free4U.co.uk?

       A.It provides visitors with presents for signing up their friends to its advertisers.

       B.It offers teenagers mobile phone wallpapers and screensavers for free.

       C.It gets payment when it publishes ads.

       D.It charges youngsters for downloads.

68.Which of the following is NOT true according to the passage?

       A.Jonathan set up his first website when he was twelve.

       B.Jonathan is a student of Royal Grammar School.

       C.Jonathan founded the websites for money only.

       D.Jonathan is in charge of two websites now.

69.According to the passage, it’s obvious that        .

       A.Jonathan’s websites are popular with both visitors and advertisers

       B.visitors sign up on Jonathan’s website in order to get rewards

       C.a(chǎn)dvertisers pay for their products being advertised online

       D.Jonathan is interested in working all by himself

70.The passage is mainly about          .

       A.a(chǎn) smart online advertising technique

       B.a(chǎn) promising business web - master

       C.a(chǎn) web ? based marketing producer

       D.a(chǎn) successful online marketing

 

E

Today’s career assumptions are that you can get a lot of development, challenge and job satisfaction and not necessarily be in a management role.

“I hated all the meetings,” says a 10-year award-winning manager, “And I found the more you did for people who worked for you, the more they expected.”

  Managing others is always a tough task, but in the past that stress was balanced by hopes for career mobility and financial rewards. Along with a sizable pay raise, people chosen as managers would begin a nearly automatic climb up the career ladder to lucrative executive private benefits: company cars, club memberships, plus the key to the executive washroom.

But in today’s global, more competitive showground, a manager sits in an insecure chair.  Restructuring has removed layer after layer of management as companies came to view their organizations as collections of talents rather than hierarchies(等級(jí)). There are far fewer steps for managers to climb. Also, managerial jobs demand more hours and headaches than ever before but offer slim, if any, financial paybacks and perks.

Now managers must manage many people who are spread over different locations, even over different continents. They must manage across functions with, say, design, finance and marketing.

In an age of entrepreneurship, when the most praised people in business are those launching something new, management seems like an invisible, thankless role. Employers are looking for people who can do things, not for people who make other people do things.

In addition, the Dilbert factor is at work. With Dilbert’s popular cartoon character as well as many television situation comedies routinely describing managers as fools or enemies, they just don’t get much respect any more.

  Moreover, it may not pay to be a manager at least not the way it once did. Ms. Chmielewski says. “The emotional rewards can be great, and there were times I enjoyed management. But a 10-to-11-hour day and one weekend day a month is the norm.”

  With more people cautious of joining management, are corporations being hurt or worrying about developing future leaders? Not many are. While employers have dismissed a lot of managers, they believe many more candidates lingers on at many companies. “Another reason companies aren’t short of managers”, argues Robert Kelly, a business professor, “is that so many workers today are self-managed, either individually or via teams, you don’t need a manager.”

71.By writing the passage, the writer seems to         .

       A.explain reasons for firing managers

       B.a(chǎn)dvise people not to become managers

       C.express dissatisfaction of some managers

       D.encourage managers to be more competitive

72.Compared with the past, the managing job today is more         .

       A.demanding                                    B.rewarding        

       C.questionable                                  D.a(chǎn)cceptable

73.The author mentions what Ms. Chmielewski says to reflect that          .

       A.the managers’ low working efficiency makes them less paid

       B.the gain of being a manager is not as satisfactory as before

       C.she enjoys great emotional rewards of being a manager

       D.she misses the past enjoyment of being a manager

74.What can we learn from the passage?

       A.Managers have more chances to be promoted now.

       B.Managers were not satisfied with the way they were treated.

       C.It is unnecessary for a qualified manager to manage a variety of fields.

       D.The cartoon character by Dilbert contributes to the bad image of managers.

75.What can we infer from the last paragraph?

       A.More and more people are eager to become managers.

       B.There will be more managers to be employed in the future.

       C.Employers think it easy for them to find managers in the future.

       D.Team ? work makes it possible for companies not to hire more managers.

 

第Ⅱ卷(共35分)

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第四部分:書面表達(dá)(共兩節(jié),滿分35分)

第一節(jié)  情景作文(20分)

你班要舉辦以“Ordinary but Great”為題的英語主題班會(huì)。請(qǐng)根據(jù)下列信息準(zhǔn)備一篇發(fā)言稿,介紹趙郁的成長經(jīng)歷。

姓名

趙郁

職務(wù)

北京奔馳(Benz)公司首席技師

經(jīng)歷

1.從小喜歡發(fā)明創(chuàng)造;

2.做普通工人17年;

3.自學(xué)電腦、英語;能看懂英文汽車資料;能解決有關(guān)汽車的技術(shù)難題;

4.獲得許多獎(jiǎng)勵(lì)。

注意:1.詞數(shù)不少于60。

2.文章的題目和開頭已經(jīng)給出。

3.可以適當(dāng)增加細(xì)節(jié),以使行文連貫。

提示詞:首席技師  chief technician

Ordinary but Great

We are all ordinary people, but following what we are interested in and doing what we are good at can help us make great achievements for society and go far. Here’s a convincing and inspiring example.

第二節(jié)  開放作文(15分)

請(qǐng)根據(jù)下面提示,寫一篇短文。詞數(shù)不少于50。

In your English class, you are asked to describe the following picture and explain to your classmates how you understand it.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

試題詳情

北京市海淀區(qū)2008年高三第二學(xué)期期末練習(xí)

理科綜合試題

 

本試卷分第Ⅰ卷(選擇題)和第Ⅱ卷(非選擇題)兩部分,滿分300分?荚嚂r(shí)間150分鐘。

注意事項(xiàng):

1. 答卷前將學(xué)校、班級(jí)、姓名填寫清楚。

2. 第Ⅰ卷每小題選出答案后,用鉛筆把答題卡上對(duì)應(yīng)題目的答案標(biāo)號(hào)涂黑。如需改動(dòng),用橡皮擦干凈后,再選涂其他答案。不能直接答在試題卷上。

 

第Ⅰ卷(選擇題  共120分)

 

本卷共20小題,每小題6分,共120分。在每小題給出的四個(gè)選項(xiàng)中,選出符合題目要求的一項(xiàng)。

可能用到的相對(duì)原子質(zhì)量:H 1  C 12  N 14  O 16  Na  23  S 32  C1 35.5  Fe 56 

Cu 64  I 127

1.下列有關(guān)人類健康的敘述,正確的是                                     (    )

    A.吃一些含卵磷脂較多的食物,有預(yù)防脂防肝的作用

    B.植物性食物的氨基酸種類比動(dòng)物性食物更適合人類的需求

    D.預(yù)防過敏反應(yīng)的主要措施是讓身體產(chǎn)生對(duì)過敏原的適應(yīng)

2.潮間帶常見的浜螺捕食多種藻類,尤其喜食競爭力強(qiáng)的滸

   苔。據(jù)圖1判斷下列敘述不正確的是          (    )

    A.浜螺捕食滸苔,其它藻類能獲得更多的生存空間

    B.浜螺的種群密度越大,越容易維持藻類的多樣性

    C.若潮間帶沒有浜螺,其藻類多樣性會(huì)下降

    D.浜螺的種群密度對(duì)藻類的多樣性有調(diào)控作用

3.下列有關(guān)免疫的敘述,不正確的是            (    )

    A.效應(yīng)T細(xì)胞與靶細(xì)胞密切接觸,可導(dǎo)致靶細(xì)胞裂解死亡

    B.再次受到同種抗原刺激時(shí),記憶細(xì)胞可迅速產(chǎn)生大量抗體

    C.T細(xì)胞可以產(chǎn)生淋巴因子,刺激B細(xì)胞增殖和分化

    D.吞噬細(xì)胞在特異性免疫和非特異性免疫中都發(fā)揮作用

4.下列關(guān)于利用谷氨酸棒狀桿菌生產(chǎn)谷氨酸的敘述中,正確的是               (    )

    A.利用微生物發(fā)酵法生產(chǎn)谷氨酸,常用的培養(yǎng)基屬于合成培養(yǎng)基

    B.發(fā)酵罐中的谷氨酸過量時(shí),會(huì)抑制相關(guān)酶的活性,屬于酶合成調(diào)節(jié)

    C.應(yīng)該選擇穩(wěn)定期的菌體作菌種,因?yàn)樵撈诰w生理特征比較穩(wěn)定

    D.通過連續(xù)培養(yǎng)法生產(chǎn)谷氨酸有助于縮短培養(yǎng)周期,提高設(shè)備利用率

5.2008年8月8日第29屆奧運(yùn)會(huì)將在北京舉行。下列說法正確的是            (    )

    A.奧運(yùn)會(huì)場館“鳥巢”使用的Q460特殊鋼屬于合金

    B.奧運(yùn)會(huì)期間使用的大型遙控飛艇充入的安全且輕的氣體是氫氣

    C.奧運(yùn)會(huì)場館“水立方”用的新研制涂料氮化鎵屬于硅酸鹽材料

    D.奧運(yùn)吉祥物“福娃”制品內(nèi)的填充物聚酯纖維是天然高分子材料

6.根據(jù)下列實(shí)驗(yàn)內(nèi)容得出的結(jié)論正確的是                                   (    )

   

選項(xiàng)

實(shí)驗(yàn)內(nèi)容

結(jié)論

A

某物質(zhì)的水溶液使紅色石蕊試紙變藍(lán)

該物質(zhì)一定是堿

B

某氣體能使?jié)駶櫟矸鄣饣浽嚰堊兯{(lán)

該氣體一定是氯氣

C

某物質(zhì)的水溶液中加入鹽酸產(chǎn)生無色無味氣體

該溶液一定是碳酸根離子

D

0.84g鐵和50.00mL 1.00mol/L的稀硝酸反應(yīng)

反應(yīng)后溶液中一定有Fe3+和Fe2+

 

 

 

 

 

 

    A.興奮劑X的化學(xué)式為C16H15O3

    B.兩者均不芳香族化合物,均能發(fā)生消去反應(yīng)

    C.兩者均能與酸性高錳酸鉀溶液和氫氧化鈉溶液反應(yīng)

    D.1 mol 利尿酸最多可與4 mol Br2和6 mol H2反應(yīng)

8.下列實(shí)驗(yàn)操作合理的是                                                 (    )

    A.可用分液漏斗分離硝基苯和水的混合物

    B.除去苯中的少量苯酚,可加入濃溴水后過濾

    C.銀鏡反應(yīng)實(shí)驗(yàn)后試管內(nèi)壁附有銀,可用氨水清洗

    D.可用酸性高錳酸鉀溶液鑒別已烯、甲苯、乙酸乙酯

9.下列指定粒子的數(shù)目相等的是                                           (    )

    A.物質(zhì)的量相等的水與重水含有的中子數(shù)

    B.等質(zhì)量的乙烯和丙烯中含有共用電子對(duì)數(shù)

    C.同溫、同壓、同體積的一氧化碳和乙烯含有的質(zhì)子數(shù)

    D.等物質(zhì)的量和鐵和銅分別與氯氣完全反應(yīng),轉(zhuǎn)移的電子數(shù)

 

X

 

 

Y

Z

R

 

 

 

 

W

 

Z、R和W為主族元素。下列說法正確的是(    )

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    B.五種元素的原子最外層電子數(shù)一定大于2

    C.X的氫化物的沸點(diǎn)一定比Z的氫化物的沸點(diǎn)高

    D.R的最高價(jià)氧化物對(duì)應(yīng)的水化一定是強(qiáng)酸

11.某溫度下,2L密閉容器中充入2 molX、1molY,發(fā)生反應(yīng)2X(g)+Y(g)     2Z(g),經(jīng)60s達(dá)平衡,此時(shí)Y的物質(zhì)的量為0.2mol。下列說法不正確的是    (    )

    A.在當(dāng)溫度不變,容器體積變?yōu)?L時(shí),Z的物質(zhì)的量增大

    B.在溫度、體積不變的情況下,用Z表示化學(xué)反應(yīng)的速率為0.8 mol/L(L?min)

    C.在體積不變,升高溫度重新達(dá)到平衡時(shí),Z的物質(zhì)的量為1.4mol,則正反應(yīng)的△H<0

    D.在溫度、體積不變的情況下,若再充入2 molX、1mol Y,重新達(dá)平衡后,Z的體積

       分?jǐn)?shù)不變

12.下列說法正確的是                                                    (    )

    A.t℃時(shí),某溶液的pH=6,則該溶液一定為酸性

    B.常溫下,將pH=11的氨水稀釋后,溶液中所有離子的濃度均降低

    C.常溫下,將pH=11的NaOH溶液和pH=3的CH3COOH溶液等體積混合后,溶液pH<7

    D.常溫下,物質(zhì)的量濃度和體積相同的K2CO3、K2SO4、HC1溶液混合后,溶液的pH<7

13.在下列各組光學(xué)實(shí)驗(yàn)現(xiàn)象事實(shí)中,都能說明光具有波動(dòng)性的一組是          (    )

    A.白松亮斑、雨后空中出現(xiàn)的彩虹

    B.水面上的油膜呈現(xiàn)彩色、用光導(dǎo)纖維傳播信號(hào)

    C.光的雙縫干涉現(xiàn)象、偏振現(xiàn)象

    D.日食、光電效應(yīng)現(xiàn)象

14.關(guān)于天然放射現(xiàn)象,下列說法中正確的是                                (    )

    A.衰變說明原子核里有電子

    B.某原子核經(jīng)過一次衰變和兩次衰變后,核內(nèi)中子數(shù)減少4個(gè)

    C.放射性物質(zhì)的溫度升高,其半衰期將縮短

    D.射線的電離作用很強(qiáng),可用來消除有害靜電

15.分子間有相互作用的勢能,規(guī)定兩分子相距無究遠(yuǎn)時(shí)分子勢能為零,并已知兩分子相距r0時(shí)分子間的引力與斥力大小相同。設(shè)分子a和分子b從相距無究處分別以一定的初速度在同一直線上相向運(yùn)動(dòng),直到它們之間的距離達(dá)到最小。在此過程中下列說法正確的是                                                (    )

    A.a(chǎn)和b之間的勢能先增大,后減小

    B.a(chǎn)和b的總動(dòng)能先增大,后減小

    C.兩分子相距r0時(shí),a和b的加速度均不為零

    D.兩分子相距r0時(shí),a和b之間的勢能大于零

 

實(shí)驗(yàn)裝置,此裝置可視為擺長為L的單擺,

沙擺的運(yùn)動(dòng)可看作簡諧運(yùn)動(dòng),實(shí)驗(yàn)時(shí)在木

板上留下圖(甲)所示的結(jié)果。若用手拉

木板做勻速運(yùn)動(dòng),速度大小是0.20m/s。

圖(乙)所示的一段木板的長度是0.60m,

那么這次實(shí)驗(yàn)所用沙擺對(duì)應(yīng)的單擺長L約

為                          (    )

    A.2.0m           B.1.5m          

17.向心力演示器如圖3所示。轉(zhuǎn)動(dòng)手柄1,可使變速

塔輪2和3 以及長槽4和短槽5隨之勻速轉(zhuǎn)動(dòng)。

皮帶分別套在塔輪2和3上的不同圓盤上,可使兩

個(gè)槽內(nèi)的分別以幾種不同的角速度做勻速圓周運(yùn)動(dòng),

小球做圓周運(yùn)動(dòng)的向心力由橫臂6的擋板對(duì)小球的

壓力提供,球?qū)醢宓姆醋饔昧Γㄟ^橫臂的杠桿

使彈簧測力套筒7下降,從而露出標(biāo)尺8,標(biāo)尺8

上露出的紅白相間等分格子的多少可以顯示出兩個(gè)

球所受向心力的大小,F(xiàn)分別將小球放在兩邊的槽

內(nèi),為探究小球受到的向心力大小與角速度的關(guān)系,下列做法正確的是      (    )

    A.在小球運(yùn)動(dòng)半徑相等的情況下,用質(zhì)量相同的鋼球做實(shí)驗(yàn)

    B.在小球運(yùn)動(dòng)半徑相等的情況下,用質(zhì)量不同的鋼球做實(shí)驗(yàn)

    C.在小球運(yùn)動(dòng)半徑不等的情況下,用質(zhì)量不同的鋼球做實(shí)驗(yàn)

    D.在小球運(yùn)動(dòng)半徑不等的情況下,用質(zhì)量相同的鋼球做實(shí)驗(yàn)

車箱中,使桿沿軌道方向固定,可以對(duì)火車運(yùn)動(dòng)

的加速度進(jìn)行檢測。閉合開關(guān)S,當(dāng)系統(tǒng)靜止時(shí),

穿在光滑絕緣桿上的小球停在O點(diǎn),固定在小球

上的變阻器滑片停在變阻器BC的正中央,此時(shí),

電壓表指針指在表盤中央0刻度。當(dāng)火車水平方

向有加速度時(shí),小球在光滑絕緣桿上移動(dòng),滑片

P隨之在變阻器上移動(dòng),電壓表指針發(fā)生偏轉(zhuǎn)。

已知火車向右加速運(yùn)動(dòng)時(shí),電壓表的指針向左

偏。則                           (    )

    A.若火車向右做減速運(yùn)動(dòng),小球在O點(diǎn)右側(cè),電壓表指針向左偏

    B.若火車向左做減速運(yùn)動(dòng),小球在O點(diǎn)左側(cè),電壓表指針向右偏

    C.若火車向左做減速運(yùn)動(dòng),小球在O點(diǎn)左側(cè),電壓表指針向左偏

    D.若火車向右做減速運(yùn)動(dòng),小球在O點(diǎn)右側(cè),電壓表指針向左偏

 

粒子a、b所通過的路徑,則   (    )

    A.a(chǎn)的質(zhì)量一定大于b的質(zhì)量

    B.a(chǎn)的電荷量一定大于b的電荷量

    C.a(chǎn)運(yùn)動(dòng)的時(shí)間大于b運(yùn)動(dòng)的時(shí)間

    D.a(chǎn)的比荷(qa/ma)大于b的比荷(qb/mb

    A.鐵塊與輕彈簧相碰過程中所具有的最大彈性勢能

    B.彈簧被壓縮的最大長度

    C.長木板運(yùn)動(dòng)速度的最大值

    D.鐵塊與長木板間的動(dòng)摩擦因數(shù)

第Ⅱ卷(非選擇題 共180分)

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波長,已知雙縫間距d=0.20m,雙縫到屏的距離

L=700mm,將測量頭的分劃板中心刻線與某一亮

條紋的中心對(duì)齊,并將該條紋記為第一亮條紋,

其示數(shù)如圖7所示,此時(shí)的示數(shù)為       mm。

然后轉(zhuǎn)動(dòng)測量頭,使分劃板中心刻線與第五條亮

條紋的中心對(duì)齊,測出第五條亮條紋與第一亮條

紋中心線間的距離為9.240mm。由以上數(shù)據(jù)可求得該紅光的波長為          m(保留兩位有效數(shù)字)

A.電阻箱:最大阻值為999.9

B.電阻箱:最大阻值為99999.9

C.滑動(dòng)變阻器:最大阻值為200

D.滑動(dòng)變阻器:最大阻值為2 k

E.電源:電動(dòng)勢約為2V,內(nèi)阻很;

F.電源:電動(dòng)勢約為6V,內(nèi)阻很;    G.開關(guān),導(dǎo)線若干。

為提高測量精度,在上述可供選擇的器材中,可變電阻R1應(yīng)該選擇             ;可變電阻R2應(yīng)該選擇             ;電源E應(yīng)該選擇             。(填入選用器材的字母代號(hào))

②測電流G內(nèi)阻R2的實(shí)驗(yàn)步驟如下:

a. 連接電路,將可變電阻R1調(diào)到最大;

b. 斷開S2,閉合S1,調(diào)節(jié)可變電阻R1使電流表G滿偏;

時(shí)可以認(rèn)為電流表G的內(nèi)阻Rx=R2設(shè)電流表G內(nèi)

阻Rx的測量值為R,真實(shí)值為R,則Rx  R。

(填“大于”、“小于”或“相等”)

③若測得R=105.0,現(xiàn)串聯(lián)一個(gè)9895.0的電

阻將它改裝成電壓表,用它來測量電壓,電流表盤

指針位置如圖9所示,則此時(shí)所測量的電壓值應(yīng)是

      V。

22.(16分)質(zhì)量m=2.0×10-4kg、電荷量q=1.0×10-6C的帶正電微粒靜止在空間范圍足夠大的勻強(qiáng)電場中,電場強(qiáng)度大小為E1。在t=0時(shí)刻,使電場強(qiáng)度空然增加到E2=4.0×103N/C,到t=0.20s時(shí)刻再把電場方向改為水平向右,場強(qiáng)大小保持不變。g=10m/s2。求:

   (1)電場強(qiáng)度E1的大;

   (2)t=0.20s時(shí)刻帶電微粒的速度大小;

   (3)帶電微粒運(yùn)動(dòng)速度水平向右時(shí)的動(dòng)能。

 

 

23.(18分)高頻焊接是一種常用的焊接方法,圖10是焊接的原理示意圖。將半徑r=0.10m

 

 

 

 

 

 

 

 

 

   (1)0―2.0×10-2s和2.0×10-2s―3.0×10-2s時(shí)間內(nèi)環(huán)形金屬工件中感應(yīng)電動(dòng)勢各是多大;

   (2)0―2.0×10-2s和2.0×10-2s―3.0×10-2s時(shí)間內(nèi)環(huán)境金屬工件中感應(yīng)電流的大小,并在圖12中定量畫出感應(yīng)電流隨時(shí)間變化的i-t圖象(以逆時(shí)針方向電流為正);

   (3)在t=0.10s內(nèi)電流通過焊接處所產(chǎn)生的焦耳熱。

 

 

 

 

 

 

 

 

 

 

 

 

   (1)求衛(wèi)星從“48h軌道”的近地點(diǎn)P進(jìn)入“地月轉(zhuǎn)移軌道”過程中主發(fā)動(dòng)機(jī)對(duì)“嫦娥一號(hào)衛(wèi)星”做的功(不計(jì)地球引力做功和衛(wèi)星質(zhì)量變化);

   (2)求“嫦娥一號(hào)衛(wèi)星”在繞月球圓形工作軌道Ⅰ上運(yùn)動(dòng)時(shí)距月球表面的高度;

   (3)理論證明:質(zhì)量為m的物體距月球無限遠(yuǎn)處無初速釋放,它在月球引力作用下運(yùn)動(dòng)至月球中心的距離為r處的過程中,月球引力對(duì)物質(zhì)所做的功可表示為W=Gm­­月­m/r。為使“嫦娥一號(hào)衛(wèi)星”在近月點(diǎn)Q進(jìn)行第一次制動(dòng)后能成為月球的衛(wèi)星,且與月球表面的距離不小于圓形工作軌道Ⅰ的高度,最終進(jìn)入圓形軌道Ⅰ,其第一次制動(dòng)后的速度大小應(yīng)滿足什么條件?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

已知:有機(jī)物B和有機(jī)物C的蒸氣在同溫同壓下密度相同,有機(jī)物C分子中含有兩個(gè)甲基。請(qǐng)回答下列問題:

   (1)F和D中含有的官能團(tuán)的名稱分別為                 

   (2)有機(jī)物C的結(jié)構(gòu)簡式為       。

   (3)有機(jī)物E能發(fā)生的反應(yīng)類型有(填字母)          

A.取代反應(yīng)   B.加成反應(yīng)      C.消去反應(yīng)    D.加聚反應(yīng)  E.中和反應(yīng)

   (4)以M表示有機(jī)物的摩爾質(zhì)量,則下列關(guān)系正確的是(填字母)       。

A.M(A)=M(B)+M(C)        B.M(B)=M(E)+14

C.2M(D)+18=M(B)+M(E)    D.M(B)>M(D)>M(E)>M(F)

   (5)簡述檢驗(yàn)有機(jī)物D中的官能團(tuán)的實(shí)驗(yàn)方法                                 

   (6)有機(jī)物A的一種同分異構(gòu)體X,能發(fā)生銀鏡反應(yīng),且分子結(jié)構(gòu)中有1個(gè)碳原只與碳原子相連。X與氫氣在一定條件下反應(yīng)生成有機(jī)物Y,Y分子中含有兩個(gè)相同的官能團(tuán)。寫出X的結(jié)構(gòu)簡式。                                     。

 

 

 

 

有機(jī)物Y有廣泛的用途,如生產(chǎn)泡沫塑料、涂料等。寫出Y與對(duì)苯二甲酸在一定條件下發(fā)生縮聚反應(yīng)的化學(xué)方程式                                        。

26.(18分)X、Y和W為原子序數(shù)依次遞增的短周期元素,X和Y同主族,Y和W的氣態(tài)氫化物具有相同的電子數(shù),X的單質(zhì)只有氧化性。

   (1)寫出實(shí)驗(yàn)室制取W2反應(yīng)的離子方程式                          。

 

 

 

 

 

 

 

①分別通入YX2和W2,在裝置A中觀察到的現(xiàn)象是否相同(填“相同”或“不相同”)                              ;

若裝置D中裝的是鐵粉,當(dāng)通入W2時(shí)觀察到的現(xiàn)象為                        ;若裝置D中裝的是五氧化二釩,當(dāng)通入YX­2時(shí),打開K通入適量X­2,化學(xué)反應(yīng)方程式為                                        

②若裝置B中裝有5.0mL 1.0×10-3mol/L的碘水,當(dāng)通入足量W2完全反應(yīng)后,轉(zhuǎn)移了5.0×10-5mol電子,該反應(yīng)的化學(xué)方程式為                             

   (3)某同學(xué)將足量的YX2通入一支裝有氯化鋇溶液的試管,未見沉淀生成,向該試管中加入過量(填字母)                ,可以看到白色沉淀生成,其原因分別為                

A.氨水       B.稀鹽酸        C.稀硝酸          D.氯化鈣

   (4)若由元素Y和X組成―2價(jià)酸根Z,Z中Y和X的質(zhì)量比為Y:X=4:3,當(dāng)W2與含Z的溶液完全反應(yīng)后,有淺黃色沉淀產(chǎn)生,取上層清液加入氯化鋇溶液,有白色沉淀產(chǎn)生,該反應(yīng)的離子方程式為                            。

27.(15分)A、B、D、E和F為中學(xué)化學(xué)常見的化合物,A、B、D、E的焰色反應(yīng)均呈黃色,F(xiàn)為無色無味氣體。相互轉(zhuǎn)化關(guān)系如下:

A+F→B+O2    B+F+H2O→D   D+E→B+H2O

請(qǐng)根據(jù)題目要求回答下列問題。

   (1)①寫出E的電子式             ;

②寫出反應(yīng)A+F→B+O2的化學(xué)方程式                                 ;

③寫出D溶液與E溶液反應(yīng)的離子方程式                          。

 

 

 

 

 

 

 

 

        裝置(I)中G和N為氣體進(jìn)口,其中G口進(jìn)入的氣體名稱是           ,寫出電極②的電極反應(yīng)式                             

   (3)裝置(II)是新近研制裝有涂二氧化鈦的光電析的光電電解水裝置的示意圖,在電極附近的K出口產(chǎn)生氣體化學(xué)式是                          

   (4)在A中加入稀硫酸可生成一種含有非極性鍵的共價(jià)化合物X,寫出向E和X的混合溶液中,通入二氧化氮反應(yīng)的離子方程式                        

 

 

 

28.(12分)據(jù)報(bào)道,北京奧運(yùn)會(huì)“祥云”火炬燃料為丙烷,悉尼奧運(yùn)會(huì)火炬燃料為丁烷和丙烷混合氣。

   (1)常溫、同壓下,等體積的丙烷和丁烷完全燃燒恢復(fù)到原狀態(tài),生成二氧化碳的體積比為           。

   (2)已知丁烷的燃燒熱(生成液態(tài)水)為2880kJ/mol,1mol丙烷和丁烷(物質(zhì)的量之比1:1)的混合氣完全燃燒放出的熱量為2550kJ。寫出丙烷燃燒的熱化學(xué)方程式

                                                                               

   (3)標(biāo)準(zhǔn)狀況下,1.0mol丙烷和丁烷的混合氣和足量氧氣混合完全燃燒后,恢復(fù)至原狀態(tài),混合氣體的體積減小了70.0L,混合氣體中丙烷和丁烷的體積比為        

   (4)標(biāo)準(zhǔn)狀況下,aL的某丙烷和丁烷的混合氣體,在bL足量氧氣中完全燃燒后,恢復(fù)到原狀態(tài)體積為VL,所得氣體體積V為(用a和b表示)                 。

穗下第一張葉片(旗葉)的光合作用

供給,其它綠色部分如麥穗也有光合能

力。圖17示小麥旗葉和麥穗光合作用

與耐旱性關(guān)系的研究結(jié)果。請(qǐng)回答下

列有關(guān)問題:

   (1)由圖可知,          的興合作用

對(duì)缺水比較敏感,如果小麥在孕穗

期和開花期遇到干旱,將對(duì)產(chǎn)量有

較大的影響。同時(shí),        的光合作用對(duì)干旱有較強(qiáng)的適應(yīng)性,這對(duì)植物度過不良環(huán)境有一定的積極作用。

   (2)水分對(duì)光合作用的影響是多方面的。一方面缺水可導(dǎo)致氣孔關(guān)閉,光合作用會(huì)因

                     階段的原料不足而受到影響。另一方面缺水還會(huì)使物質(zhì)運(yùn)輸變慢,當(dāng)光合產(chǎn)物在        中積累過多時(shí),會(huì)使光合作用產(chǎn)生反饋性抑制。

   (3)不同程度的缺水對(duì)光合作用的影響也有所不同。中度缺水會(huì)影響葉綠體囊狀結(jié)構(gòu)薄膜上的電子傳遞,從而使           的形成受到抑制;嚴(yán)重缺水還會(huì)造成葉綠體囊狀結(jié)構(gòu)的破壞,而且在供水后也難以恢復(fù)。因而,植物不能長時(shí)間缺水,合理灌溉就是指根據(jù)植物的需水規(guī)律              地進(jìn)行灌溉。

30.(18分)請(qǐng)回答下列有關(guān)溫度與酶活性的問題:

   (1)溫度對(duì)唾液淀粉酶活性影響的實(shí)驗(yàn):

        將盛有2mL唾液淀粉酶溶液的試管和盛有2mL可溶性淀粉溶液的試管編為一組,共四組。在0℃、20℃、37℃和100℃水浴中各放入一組,維持各自的溫度5min。然后,將淀粉酶溶液注入相同溫度下的淀粉溶液中,搖勻后繼續(xù)放回原來的溫度下保溫。

        把                               的時(shí)間作為本實(shí)驗(yàn)的起始時(shí)間記錄下來。再每隔一分鐘,取一滴混合液滴在盛有碘液的點(diǎn)滴板上進(jìn)行觀察,記錄每種混合液藍(lán)色消失的時(shí)間。通過比較混合液中         消失所需時(shí)間的長短來推知酶的活性。預(yù)計(jì)          溫度下混合液因其中的酶失去活性藍(lán)色不會(huì)消失。

   (2)溫度對(duì)酶活性的影響主要體現(xiàn)在兩個(gè)方面。其一,隨溫度的升高會(huì)使         接觸的機(jī)會(huì)增多,反應(yīng)速率變快。其二,因?yàn)榇蠖鄶?shù)酶是蛋白質(zhì),本身隨溫度升高而發(fā)生            的改變,溫度升到一定程度,酶將完全失活。這兩種作用疊加在一起,使酶促反應(yīng)在某一溫度下最快,這一溫度就是該酶的                

   (3)科研人員通過蛋白質(zhì)工程來設(shè)計(jì)改變酶的構(gòu)象。在研究溶菌酶的過程中,得到了多種突變酶,測得酶50%發(fā)生變性時(shí)的溫度(Tm),部分結(jié)果見下表:

半胱氨酸(Cys)的位置和數(shù)目

二硫鍵數(shù)目

Tm/℃

野生型T4溶菌酶

Cys51,Cys97

41.9

突變酶C

Cys21,Cys143

1

52.9

突變酶F

Cys3,Cys9,Cys21,Cys142,Cys164

3

65.5

       (注:Cys上角的數(shù)字表示半胱氨酸在肽鏈的位置)

        溶菌酶熱穩(wěn)定性的提高,是通過改變             和增加        得以實(shí)現(xiàn)的。從熱穩(wěn)定性高的酶的氨基酸序列出發(fā),利用             方法獲得目的基因,通過基因工程的手段,可以生產(chǎn)自然界中不存在的蛋白質(zhì)。

        1. 16號(hào)染色體上,胎兒期和成年期基因的表達(dá)情況

          如圖18所示(注:α2表示兩條α肽鏈)

             (1)人在不同發(fā)育時(shí)期血蛋白的組成不同,這是

          紅細(xì)胞不同基因                 的結(jié)果。

          圖中α鏈由141個(gè)氨基酸組成,β鏈由146

          個(gè)氨基酸組成,那么成年人血紅蛋白分子的

          肽鍵數(shù)是              

             (2)圖中11號(hào)染色體上β珠蛋白基因中一個(gè)堿

          基對(duì)的改變,導(dǎo)致谷氨酸被纈氨本替換(人

          類鐮刀型細(xì)胞貧血癥)。已知谷氨酸被纈氨酸的密碼子之一為GAA,纈氨酸的密碼子之一為GUA。則突變后的基因控制該氨基酸的相應(yīng)片段其堿基組成是                       。

             (3)下列哪種方法不能用來確診鐮刀型貧血癥的患者(單選)        

              1. B.顯微鏡下檢測紅細(xì)胞的形態(tài)

                C.檢測血紅蛋白的氨基酸序列    

                D.利用基因探針進(jìn)行分子雜交

                   (4)圖19是一個(gè)鐮刀型細(xì)胞貧血癥的系譜圖。由此

                可知,鐮刀型細(xì)胞貧血癥是           遺傳病。

                圖中II6和II7再生一個(gè)患病男孩的概率為    

                           。請(qǐng)用遺傳圖解來解釋III10的患病

                原因(基因用B、b表示)。

                   (5)一位研究者檢驗(yàn)了東非某人群中290人兒童的血樣。

                在這個(gè)人群中瘧疾和鐮刀型貧血癥都流行,調(diào)查結(jié)果見下表:

                基因型

                患瘧疾

                不患瘧疾

                總數(shù)

                Bb、bb

                12

                31

                43

                BB

                113

                134

                247

                總數(shù)

                125

                165

                290

                        基因型為bb的個(gè)體不到成年就會(huì)死亡。分析以上資料可以看出,在非洲瘧疾流行地區(qū),鐮刀型細(xì)胞貧血癥和瘧疾共同作用的結(jié)果是                有了更多的生存機(jī)會(huì)。經(jīng)過長期的自然選擇,使b的基因頻率比瘧疾非流行地區(qū)         。

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                試題詳情

                北京市海淀區(qū)2008年高三年級(jí)第二學(xué)期期末練習(xí)

                                   數(shù)   學(xué)(文科)                       2008.05

                本試卷分第I卷(選擇題)和第II卷(非選擇題)兩部分,第I卷1至2頁,第II卷3至9頁,共150分?荚嚂r(shí)間120分鐘。考試結(jié)束,將本試卷和答題卡一并交回。

                第I卷(選擇題  共40分)

                注意事項(xiàng) :

                1.答卷前將學(xué)校、班級(jí)、姓名填寫清楚。

                2.選擇題的每小題選出答案后,用鉛筆把答題卡上對(duì)應(yīng)的題目的答案標(biāo)號(hào)涂黑.其它小題用鋼筆或圓珠筆將答案直接寫在試卷上。

                 

                試題詳情

                海淀區(qū)高三年級(jí)第二學(xué)期期末練習(xí)

                                數(shù)   學(xué)(理科)                  2008.05

                本試卷分第I卷(選擇題)和第II卷(非選擇題)兩部分,第I卷1至2頁,第II卷3至9頁,共150分考試時(shí)。120分鐘.考試結(jié)束。將本試卷和答題卡一并交回。

                第I卷(選擇題  共40分)

                注意事項(xiàng) :

                1.答卷前將學(xué)校、班級(jí)、姓名填寫清楚。

                2.選擇題的每小題選出答案后,用鉛筆把答題卡上對(duì)應(yīng)的題目的答案標(biāo)號(hào)涂黑.其它小題用鋼筆或圓珠筆將答案直接寫在試卷上。

                 

                試題詳情

                湖北省黃岡中學(xué)2008屆高三第一次模擬考試

                語 文 試 題

                 

                第Ⅰ卷(選擇題,共36分)

                試題詳情

                湖北省黃岡中學(xué)2008屆高三第一次模擬考試

                英 語 試 題

                 

                命題人:呂琴   余亮

                 

                第一部分:聽力理解(共兩節(jié),30分)

                第一節(jié)(共5小題;每小題1.5分,共7.5分)

                聽下面5段對(duì)話。每段對(duì)話后有一道小題,從每題所給的A、B、C三個(gè)選項(xiàng)中選出最佳選項(xiàng)。聽完每段對(duì)話后,你將有10秒中的時(shí)間來回答有關(guān)小題和閱讀下一小題,每段對(duì)話你將聽一遍。

                1. What can we learn from the conversation?

                A.       It is going to rain.                    B. It is four o’clock now. C. The woman’s watch has stopped.

                2. How long is the post office open on Saturdays?

                A. For 3 hours.                      B. For 5 hours.                   C. For 8 hours.

                3. What are the two speakers doing?

                A. Looking for a job.                  B. Having a holiday.              C. Organizing a tour.

                4. Why is the man calling?

                A. To change his appointment.      B. To speak to Dr. Zane.         C. To see the woman.

                5. Where does this conversation take place?

                A. At a food store.                     B. At a restaurant.                  C. At a vegetable market.

                第二節(jié)(共15小題;每小題1.5分,共22.5分)

                聽下面6段對(duì)話或獨(dú)白,每段對(duì)話或獨(dú)白后有幾道小題,從每題所給的A、B、C三個(gè)選項(xiàng)中選出最佳選項(xiàng)。聽每段對(duì)話或獨(dú)白前,你將有5秒鐘的時(shí)間閱讀每小題。聽完后,每小題將給出5秒鐘的作答時(shí)間。每段對(duì)話或獨(dú)白你將聽兩遍。

                聽第6段材料,回答第6至8題

                6. What is the relationship between the two speakers?

                A. Boss and employee.             B. Father and daughter.        C. Teacher and student.

                7. What does the man tell the woman to do at first?

                A. Stop talking.                           B. Get her things.                    C. Arrive on time.

                8. What do we know about the woman?

                A. She is cold-blooded.             B. She is hot-tempered.          C. She is warm-hearted.

                聽第7段材料,回答第9至11題

                9. What are the two speakers generally talking about?

                A. People served in shops.        B. Goods in various qualities.   C. Shopping in different places.

                10. What is the man?

                A. A salesman in a small shop.                  B. A manager of a supermarket.

                C. A staff of a department store.

                11. What might the woman think of supermarket staff?

                A. They’re unfriendly.             B. They’re very nice.        C. They’re well-paid.

                聽第8段材料,回答第12至14題

                12. Where does this conversation probably take place?

                A. At a bus stop.                     B. At a clothes shop.              C. At a Lost and Found.

                13. How many coats are mentioned by the man?

                A. 2.                                         B. 3.                                          C. 4.

                14. What do we know about the man?

                A. He pretends to be poor.   B. He does not need a coat.       C. He is lying to the woman.

                聽第9段材料,回答第15至17題

                15. What would the woman like to eat?

                A. A sandwich.                B. Fried rice.                    C. Pizza.

                16. What drink will the man buy?

                A. A Coke.                        B. A hot coffee.                C. An orange juice.

                17. How much money does the woman give the man?

                A. $ 2.                               B. $ 3.                                C. $ 5.

                聽第10段材料,回答第18至20題

                18. What probably is the speaker?

                A. An air hostess.                    B. A woman pilot.                   C. A flight engineer.

                19. What is the flight number?

                A. 5166.                                   B. 7156.                             C. 6166.

                20. When does the speaker give the talk?

                A. Before a flight.                    B. During a flight.                    C. After a flight.

                 

                第二部分:英語知識(shí)運(yùn)用(共兩節(jié),滿分55分)

                第一節(jié)  單項(xiàng)選擇題(共10小題;每小題1分,滿分10分)

                從A、B、C、D四個(gè)選項(xiàng)中,選出可以填入空白處的最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。

                21.Should you have enough energy left after a day on the slopes, you can take a dip in the pool, ______ at the gym or go dancing in one of the city’s hotels and clubs.

                A.go out                      B.run out               C.work out            D.turn out

                22.I don’t think Maria will be disappointed at the news, but I will see her ________ she is.

                    A.a(chǎn)s                         B.a(chǎn)s if                       C.in case                 D.even if

                23.At the moment we can’t afford a nice new car, so we’ll just have to ________ without.

                    A.take                            B.go                         C.walk                            D.drive

                24.―Did you watch the tennis final of Men’s Doubles?

                ―Yes, it was extremely exciting! It was a ______ fought game. 

                A.closely                    B.successfully                C.shortly                       D.properly

                25.I realize she can be very troublesome, but ______ I think you should apologize for being so     angry with her.

                    A.a(chǎn)ll the same       B.once in a while    C.in actual fact      D.a(chǎn)ll the time

                26.Readers can ______ quite well without knowing the exact meaning of each word.

                A. get over             B.get along           C.get in                       D.get through

                27.The work is ______ smoothly. I’m sure it will be finished in a month or so.

                A.progressing               B.improving                 C.moving             D.keeping

                28.― What’s wrong with Jane?

                    ― A call from her mother ______ the attack of homesickness.

                A.sent out                  B.sent off               C.set out                      D.set off

                29.― If you like, I can do some shopping for you.

                ― That’s a very kind _______.

                A.offer                          B.service                  C.point                         D.suggestion

                30.As a result, Hugh Beaver decided to ________ a book that would contain all kinds of world records.

                    A.put out                B.looked into                 C.set aside                     D.brought in

                 

                第二節(jié) 完成句子(共10小題;每小題1.5分,滿分15分)

                根據(jù)括號(hào)內(nèi)的漢語提示, 用句末括號(hào)內(nèi)的英語單詞完成句子。

                31.If it were not for _____________ (你生病的事實(shí)), I would ask you to do this right now.(fact)

                32.― Could you meet me at the airport?

                    ― I’d like to, but I ______________________ (已離開上海)when you return.(leave)

                33.I can’t read the advertisement on the board. Could you hold the light ______________________ (離它更近一點(diǎn)點(diǎn)嗎)? (close)

                34.He was seated at the piano, ______________________ (背對(duì)著觀眾) .(with)

                35.The new hospital is _________________ (即將竣工). (way, finish)

                36.______________(什么也沒剩下) after the terrible fire which had been caused by someone smoking in bed. (remain)

                37.John did well in the exam. He came home ___________________ (帶著幸福的微笑). (wear)

                38.____________________ (她的新小說是必讀書)for all lovers of scientific fiction. (must  n. )

                39.Professor, I want to know ___________________ (我們的生活會(huì)是什么樣) in 50 years. (like)

                40.The girl ___________________________________ (有希望成為優(yōu)秀的畫家) if she is well trained in an art school. (promise)

                 

                第三節(jié) 完形填空(共20小題;每小題1.5分,共30分)

                閱讀下面短文,掌握其大意,從每題所給的A、B、C、D四個(gè)選項(xiàng)中,選出最佳選項(xiàng),并在答題卡上將該選項(xiàng)涂黑。

                In Glasgow, Scotland, a young lady, like a lot of teens today, got tired of home. The daughter objected to her family’s   41   lifestyle and said, “I don’t want your God. I am leaving!”

                She left home. Before long, she was disappointed and unable to find a job, so she took to the streets to do everything she could to   42  . Many years passed by, her father died, her mother grew   43  , and the daughter became more and more entrenched (固執(zhí)) in her way of life.

                No contact was made between mother and daughter during these years. The mother, having   44   her daughter’s whereabouts, went to the poor part of the city in   45   of her daughter. She stopped at each of the rescue missions (收容所) with a simple   46  . “Would you allow me to   47   this picture?” It was a picture of the smiling, gray-haired mother with a handwritten   48   at the bottom: “I love you still … come home!”

                One day the daughter wandered into a rescue mission for a hot meal. She sat   49   listening to the service, all the while letting her   50   wander over to the bulletin board. There she saw the picture and thought, could that be my mother?

                She couldn’t   51   until the service was over. She stood and went to look. It was her mother, and there were those words, “I love you still … come home!”  52   she stood in front of the picture, she wept. It was too   53   to be true.

                It was night, but she was so   54   by the message that she started walking home.  55   the time she arrived it was early in the morning. She was afraid and   56   her way timidly (膽怯地). As she knocked, the door   57   open on its own. She thought someone must have broken into the house. Concerned for her mother’s   58  , the young woman ran to the bedroom and shook her mother awake and said, “It’s me! It’s me! I’m home!”

                The mother couldn’t believe her eyes. They fell into each other’s arms. The daughter said, “I was so worried and   59   someone had broken in.” The mother replied gently, “No, dear. From the day you left, that door has never been   60  .”

                41. A. modern                   B. religious           C. awful                D. simple

                42. A. earn money              B. help others              C. get free                    D. become famous

                43. A. lonelier                     B. slower                      C. angrier                      D. older

                44. A. told about               B. heard of               C. learned from          D. talked to

                45. A. sight                 B. charge                 C. search            D. need

                46. A. request                 B. remark            C. question                D. speech

                47. A. print out                   B. look at            C. give off            D. put up

                48. A. record           B. advice                     C. message               D. notice

                49. A. sensitively         B. absent-mindedly      C. devotedly             D. carefully

                50. A. eyes                   B. hands              C. thoughts          D. imaginations

                51. A. help                      B. move              C. wait                 D. listen

                52. A. After                          B. Since                      C. Until                     D. As

                53. A. lucky                          B. good                 C. happy                    D. certain

                54. A. astonished               B. touched               C. interested              D. ashamed

                55. A. By                    B. At                     C. During                     D. Before

                56. A. had                B. led                    C. made               D. held

                57. A. seemed                    B. blew                 C. proved              D. flew

                58. A. safety             B. health               C. danger                   D. life

                59. A. observed        B. realized           C. found             D. thought

                60. A. pushed                    B. opened                    C. locked                    D. fixed

                 

                第三部分:閱讀理解(共20小題;每小題2分,共40分)

                閱讀下列短文,從每題所給的A、B、C、D四個(gè)選項(xiàng)中,選出最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。                 

                A

                Are you too old for fairy tales? If you think so, Copenhagen is sure to change your mind. See the city first from the water. In the harbor sits Denmark’s best-known landmark: the Little Mermaid. Remember her? She left the world of the sea people in search of becoming a human in one of Hans Christian Andersen’s beloved fantasies. From the harbor you can feel “city of green spires (尖頂)”. At dawn or on a cloudy day, the copper-covered spires of old castles and churches give the city a dream-like atmosphere. You’ll think that you’ve stepped into a watercolour painting.

                Copenhagen is a city made for people. You don’t have to hurry to walk through the city’s center in less than an hour. Exploring it will take much longer, but that’s easy. Copenhagen is the first city to make a street for walking only. The city has less traffic, noise, and pollution than any other European capital.

                Churches and castles are almost all remains of the original city. Copenhagen became the capital of Denmark in 1445. During the late 16th century, trade grew, and so did the city. But fires in 1728 and 1795 destroyed the old wooden buildings. Much of what we see today is from the 19th and early 20th centuries.

                Look at one of the spires up close ― really close ― at the 17th-century Church of Our Savior. Brave people may climb the 150 stairs winding outside the spire to its top. If you are afraid of heights, or if it’s a windy day, you can forget about the climb. But then you’ll miss the beautiful view.

                To see people having fun, and to have some fun yourself, cross Andersens Boulevard and enter Tivoli Gardens. You won’t be alone. More than five million people a year come here. They come to dance, eat, listen to outdoor and indoor concerts, watch ballets and laugh during comedy shows. One tip: Bring a lot of money. About 20 restaurants are among the city’s most expensive. Even without money, though, you can still enjoy the proud old trees, the coloured night lights and the beautiful gardens. You might feel as if you were in a fairy tale.

                61. Why is Copenhagen sure to change your mind ― that you are too old for fairy tales? Because ______.

                A. the Little Mermaid is Denmark’s best-known landmark

                B. Copenhagen is a city of green spires and wooden buildings that often appears in fairy tales

                C. Copenhagen is like a dream-like watercolour painting

                D. Copenhagen is a city where you find yourself in a fairy atmosphere

                62. What do you think of the city?

                A. A small quiet city which few city travelers visit.

                B. An international trade port which is busy.

                C. A beautiful ancient city with many travelers.

                D. A city where some fairy stories happened.

                63. Which of the following statements is NOT true?

                A. Mermaid is a character in one of Hans Christian Andersen’s fantasies.

                B. The 17th-century Church of Our Savior is high.

                C. Mermaid is a heroine in Denmark.

                D. Copenhagen has less traffic, noise and pollution in Europe.

                64. Which title is the most suitable for the passage?

                   A. The imaginary fairy city ― Copenhagen

                B. Not only ancient but modern ― Copenhagen

                C. City of green spires ― Copenhagen

                D. A fairyland ― Copenhagen

                 

                B

                The U.S.Department of Labor statistics (統(tǒng)計(jì)) show that there is an oversupply of college trained workers and that this oversupply is increasing. Already there have been more than enough teachers, engineers, physicists, aerospace experts, and other specialists. Yet colleges and graduate schools continue every year to turn out highly trained people to compete for jobs that aren’t there. The result is that graduates cannot enter the professions for which they were trained and must take temporary jobs which do not require a college degree.

                On the other hand, there is a great need for skilled workers of all sorts: carpenters, electricians, mechanics, plumbers, TV repairmen.

                These people have more work than they can deal with, and their annual incomes are often higher than those of college graduates. The old gap that white-collar workers make a better living than blue collar workers no longer holds true. The law of supply and demand now favors the skilled workmen.

                The reason for this situation is the traditional myth that college degree is a passport to a prosperous future. A large part of American society matches success in life equally with a college degree. Parents begin indoctrinating (灌輸) their children with this myth before they are out of grade school. High school teachers play their part by acting as if high school education were a preparation for college rather than for life. Under this pressure the kids fall in line. Whether they want to go to college or not doesn’t matter. Everybody should go to college, so of course they must go. And every year college enrollments (入學(xué)) go up and up, and more and more graduates are overeducated for the kinds of jobs available to them …

                One result of this emphasis on a college education is that many people go to college who do not belong there. Of the sixty percent of high school graduates who enter college, half of them do not graduate with their class. Many of them drop out within the first year. Some struggle on for two or three years and then give up.

                65. It’s implied but not stated in the passage that __________.

                   A. many other countries are facing the same problem

                B. white-collar workers in the US used to make more money than blue-collar workers

                C. fewer students will prefer to go to college in the future

                D. the law of supply and demand has a strong effect on American higher education

                66. Which of the following is NOT a reason why college enrollments go up every year?

                   A. Many people believe that the only way to success is a college education.

                   B. Many parents want their children to go to college.

                   C. High school teachers urge their students to go to college.

                   D. Every young man and woman wants to go to college.

                67. By saying that “many people go to college who do not belong there,” the author means that ___.

                   A. many people who are not fit for college education go to college

                   B. many people who do not have enough money go to college

                   C. many people who go to college drop out within the first year

                   D. many people who go to college have their hopes destroyed

                68. We can infer from the passage that the author believes that ________.

                   A. every young man and woman should go to college

                   B. college education is a bad thing

                   C. people with a college education should receive higher pay

                   D. fewer people should go to college while more should be trained for skilled jobs

                 

                C

                My new home was a long way from the centre of London but it was becoming essential to find a job, so finally I spent a whole morning getting to town and putting my name down to be considered by London Transport for a job on the tube. They were looking for guards, not drivers. This suited me. I couldn’t drive a car but thought that I could probably guard a train, and perhaps continue to write my poems between stations. The writers Keats and Chekhov had been doctors. T.S. Eliot had worked in a bank and Wallace Stevens for an insurance company. I would be a tube guard. I could see myself being cheerful, useful, a good man in a crisis. Obviously I would be overqualified but I was willing to forget about that in return for a steady income and travel privileges ― those being particularly welcome to someone living a long way from the city centre.

                The next day I sat down, with almost a hundred other candidates, for the intelligence test. I must have done all right because after half an hour’s wait I was sent into another room for a psychological test. This time there were only about fifty candidates. The examiner sat at a desk. You were signaled forward to occupy the seat opposite him when the previous occupant had been dismissed, after a greater or shorter time. Obviously the long interviews were the more successful ones. Some of the interviews were as short as five minutes. Mine was the only one that lasted a minute and a half.

                I can remember the questions now: “Why did you leave your last job?” “Why did you leave your job before that?” “And the one before that?” I can’t recall my answers, except that they were short at first and grew progressively shorter. His closing statement, I thought, revealed (顯露) a lack of sensitivity which helped to explain why as a psychologist, he had risen no higher than the underground railway. “You have failed the psychological test and we are unable to offer you a position.”

                Failing to get that job was my low point. Or so I thought, believing that the work was easy. Actually, such jobs ― being a postman is another one I still desire ― demand exactly the sort of elementary yet responsible awareness that the habitual dreamer is least qualified to give. But I was still far short of full self-understanding. I was also short of cash.

                69.The writer applied for the job because __________.

                A.he wanted to work in the centre of London

                B.he could no longer afford to live without one

                C.he was not interested in any other available job

                D.he had received suitable training

                70.The writer thought he was overqualified for the job because _________.

                A.he often traveled underground                 B.he had written many poems

                C.he could deal with difficult situations D.he had worked in an insurance company

                71.The length of his interview meant that _________.

                A.he was too nervous                              B.he had not done well in the intelligence test

                C.he did not like the examiner               D.he had little work experience to talk about

                72.What does the writer realize now that he did not realize then?

                A.How unpleasant ordinary jobs can be.    B.How difficult it can be to get a job.

                C.How unsuitable he was for the job.           D.How badly he did in the interview.

                 

                D

                Sometime in the next century, the familiar early-morning newspaper on the front door will disappear. And instead of reading your newspaper, it will read to you. You’ll get up and turn on the computer newspaper just like switching on the TV. An electronic voice will distribute stories about the latest events, guided by a program that selects the type of news you want. You’ll even get to choose the kind of voice you want to hear. Want more information on the brief story? A simple touch makes the entire text appear. Save it in your own personal computer file you like. These are among the predictions from communications experts working on the newspapers of the future. Pictured as part of broader home-based media and entertainment systems, computer newspapers would unite print and broadcast reporting, offering news and analysis with video images of news events.

                Most of the technology is available now, but convincing more people that they don’t need paper to read a newspaper is the next step. But resistance to computer newspapers may be stronger from within journalism. “ Since it is such a cultural change, it may be that the present generation of journalists and publishers will have to die off before the next generation realizes that the newspaper industry is no longer a newspaper industry.” Technology is making the end of traditional newspapers unavoidable.

                   Despite technological advances, it could take decades to replace newsprint with computer screens. It might take 30 to 40 years to complete the changeover because people need to buy computers and because newspapers have established financial interests in the paper industry.

                73.The best title for this passage is ______ .

                A.Computer Newspapers Are Well Liked

                B.Newspapers of the Future Will Likely Be on Computer

                C.Newspapers Are out of Fashion

                D.New Communications Technology

                74.It might take 30 to 40 years for computer newspapers to replace traditional newspapers, because _____.

                A.it is technologically impossible now

                B.computer newspapers are too expensive

                C.there is strong resistance from both the general population and professional journalists

                D.You can easily save information for future use

                75.Journalists are not eager to accept computer newspapers, because ________.

                A.they don’t know how to use computers

                B.they think computer newspapers take too much time to read

                C.they think the new technology is bad

                D.they have been trained to write for traditional newspaper

                76.We can infer from the passage that _______.

                A.a(chǎn)ll technological changes are good

                B.a(chǎn)ll technologies will eventually replace old ones

                C.new technologies will eventually replace old ones

                D.traditional newspapers are here to stay for another century

                 

                E

                I’m usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago. While any of these statements might be true, they are practically impossible to prove scientifically. Still, I was struck by a report which concluded that today’s children are significantly more anxious than children in the 1950s. In fact, the analysis showed, normal children aged 9 to 17 exhibit a higher level of anxiety today than children who were treated for mental illness 50 yeas ago.

                Why are America’s kids so stressed? The report cites two main causes: increasing physical isolation (隔離) brought on by high divorce rates and less involvement in community, among other things and a growing perception that the world is a more dangerous place.

                Considering that we can’t turn the clock back, adults can still do plenty to help the next generation cope (應(yīng)付).

                At the top of the list is nurturing (培養(yǎng)) a better appreciation of the limits of individualism. No child is an island. Strengthening social ties help build communities and protect individuals against stress.

                To help kids build stronger connections with others, you can pull the plug on TVs and computers. Your family will thank you later. They will have more time for face-to-face relationships, and they will get more sleep.

                Limit the amount of virtual violence your children are exposed to. It’s not just from video games and movies; children see a lot of murder and crime on the local news.

                Keep your expectations for your children reasonable. Many highly successful people never attended Harvard or Yale.

                Make exercise part of your daily routine. It will help you cope with your own anxiety and provide a good model for your kids. Sometimes anxiety is unavoidable. But it doesn’t have to ruin your life.

                77. The author thinks that the conclusions of any research about people’s state of mind are _______.

                   A. surprising                 B. confusing               C. illogical                 D. questionable

                78. What does the author mean by saying “we can’t turn the clock back” (Para 3)?

                A. It’s impossible to slow down the pace of change.

                B. The social reality children are facing cannot be changed.

                C. Lessons learned from the past should not be forgotten.

                D. It’s impossible to forget the past.

                79. According to the analysis, compared with normal children today, children treated as mentally ill 50 years ago ________.

                A. probably suffered less from anxiety               B. were probably less self-centered

                C. were considered isolated physically                    D. were considered less individualistic

                80. The first and most important thing parents should do to help their children is ________.

                A. to provide them with a safer environment          B. to lower their expectations for them

                C. to get them more involved socially               D. to set a good model for them to follow

                 

                第四部分:書面表達(dá)(共兩節(jié),35分)高考資源網(wǎng)版權(quán)所有

                5月11日是母親節(jié),你的美國朋友Catharine問你在這一天有何打算。請(qǐng)你根據(jù)以下提示,給她寫一封回信,談?wù)勀阋龅氖虑,并簡單說明原因。詞數(shù)不少于100,信的開頭與結(jié)尾已為你寫好,但不計(jì)入總詞數(shù)。

                1.幫助母親做家務(wù);2.送禮物;3.寫賀卡。

                Dear Catharine,

                I’m very glad to receive your letter.

                _______________________________________________________________________________

                Have you got any other ideas? Look forward to your reply.

                Best wishes.

                Yours truly,

                Wang Ping


                試題詳情

                湖北省黃岡中學(xué)2008屆高三第一次模擬考試

                數(shù) 學(xué) 試 題(文科)

                第Ⅰ卷(選擇題  共50分)

                試題詳情

                湖北省黃岡中學(xué)2008屆高三第一次模擬考試

                數(shù) 學(xué) 試 題(理科)

                第Ⅰ卷(選擇題  共50分)

                試題詳情

                北京市西城區(qū)2008年抽樣測試

                      初  三  物  理  試  題    2008.5

                 

                第Ⅰ卷(機(jī)讀卷  共36分)

                考生須知

                1.第Ⅰ卷均為選擇題,共16道小題,共4頁。

                2.考生要按要求在機(jī)讀答題卡上作答,小題號(hào)要對(duì)應(yīng),填涂要規(guī)范。

                3.考試結(jié)束,將機(jī)讀答題卡和本試卷一并交回。

                試題詳情

                2008年河北省課程改革實(shí)驗(yàn)區(qū)初中畢業(yè)生升學(xué)考試

                數(shù)學(xué)模擬試卷(一)

                本試卷分卷Ⅰ和卷Ⅱ兩部分;卷Ⅰ為選擇題,卷Ⅱ?yàn)榉沁x擇題.

                本試卷滿分為120分,考試時(shí)間為120分鐘.

                卷Ⅰ(選擇題,共20分)

                 

                試題詳情


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